Donna started out sweet enough, trying to help younger sister Katie overcome her low self-esteem by setting her up with a guy. Prophetically, it didn't work out. Her modeling career led to nude photos of her being published first in Europe (not a problem) and then in the States (problem!). Ever since, her attempts at manipulation have gone further off the rails. She's always trying to hook up the wrong people -- and always the last to figure out how wrong her setups are.
She's just not the sharpest knife in the drawer. Maybe that's why she has an almost uncanny knack for doing the wrong -- but sometimes the right -- thing, alienating everyone from Katie to many of the Forresters. Doesn't she know you're supposed to keep your friends close, but your enemies closer? Apparently not ... yet.